US4958145A - Back incline indicator - Google Patents
Back incline indicator Download PDFInfo
- Publication number
- US4958145A US4958145A US07/348,212 US34821289A US4958145A US 4958145 A US4958145 A US 4958145A US 34821289 A US34821289 A US 34821289A US 4958145 A US4958145 A US 4958145A
- Authority
- US
- United States
- Prior art keywords
- user
- casing
- indicator
- electric
- side plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 20
- 230000005236 sound signal Effects 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 208000025940 Back injury Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 210000003127 knee Anatomy 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910000474 mercury oxide Inorganic materials 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0438—Sensor means for detecting
- G08B21/0446—Sensor means for detecting worn on the body to detect changes of posture, e.g. a fall, inclination, acceleration, gait
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1116—Determining posture transitions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S482/00—Exercise devices
- Y10S482/909—Mechanical indicator
Definitions
- the present invention relates to position indicators and, in particular, to a position indicator that is worn on a user's back and indicates whenever the user's back is inclined beyond a predetermined level.
- An object of the invention is, therefore, to provide a back incline indicator device that indicates whenever the user's back is in an incorrect position.
- Another object of the invention is to provide a back incline indicator device that can be adapted for different users' needs.
- a further object of the invention is to provide a back incline indicator that may be worn on a user's shirt collar.
- the present invention relates to a back incline indicator that indicates whenever a user's back is bent beyond an acceptable amount.
- the back incline indicator includes an angle detector that closes an electrical circuit whenever the user's back is bent beyond the acceptable amount. The detector is set at the factory or by the user to a desired angle.
- the back incline indicator produces an audio signal in response to the circuit being closed.
- FIG. 1 shows the position of the back incline indicator on a user who is standing straight.
- FIG. 2 shows the position of the mercury switch in the back incline indicator.
- FIG. 3 shows the position of the back incline indicator on a user who is bending improperly.
- FIG. 4 shows the position of the back incline indicator on a user who is bending properly.
- FIG. 5 shows a preferred circuit arrangement for the back incline indicator.
- FIG. 6 shows an alternative circuit arrangement for the back incline indicator.
- back incline indicator 10 is attached by connector 14 to the shirt collar 20 of user 24.
- Back incline indicator 10 includes plate 28A which rests against the back of user 24 under the force of gravity.
- Dashed line 30 is parallel to a flat surface (not shown) on which user 24 is standing.
- Dashed line 32 is at a right angle to dashed line 30.
- the symbol ⁇ represents the angle between plate 28A and dashed line 32. Whenever user 24 stands straight, ⁇ is essentially equal to 0°. The exact value of ⁇ may vary from user to user.
- back incline indicator 10 includes casing 38 with side plates 28A and 28B.
- Casing 38 is preferably made of light weight plastic.
- the orientation of a mercury switch 44 is shown in casing 38.
- Mercury switch 44 includes switch sides 48A and 48B.
- Symbol ⁇ represents the angle between side 48A and plate 28A, and casing side 48B and plate 28B.
- the value of ⁇ is preferably set to a predetermined value. Alternatively, the value of ⁇ could be variable and set by the user. If ⁇ is set at the factory, mercury switch 44 could be locked into place by a bracket. If ⁇ is variable, mercury switch 44 could be held into place by a rotatable screw.
- ⁇ represents the angle between switch sides 48A and 48B and dashed line 32.
- the value of ⁇ is described by equation 1 below. It is to be understood that the dashed line 32 in FIG. 2 is a vertical line, as in FIGS. 1, 2 and 4, and that the indicator 10 is tilted as in FIG. 3.
- Mercury switch 44 allows electrical conduction within a detection circuit whenever ⁇ , the angle of mercury switch 44, is tilted by more than a critical angle, ⁇ crit. Otherwise, mercury switch 44 does not allow electrical conduction. Different mercury switches may require different degrees of tilt before the mercury moves.
- Connector 14 is preferably a clip, called a bulldog clip and manufactured by Porwake Industries Company, Ltd. Connector 14 is preferably attached to the collar of user 24 for purposes of convenience and the proximity of the collar to the ears so that back incline indicator 10 may be heard. Alternatively, back incline indicator 10 could be strapped to user 24. Back incline indicator 10 is preferably placed on the back of user 24 rather than some other part of the body, e.g., the chest. If back incline indicator 10 is positioned on the back of user 24, then whenever user 24 bends forward, back incline indicator 10 will follow the movement of the back of user 24 and the value of ⁇ will increase. By contrast, if back incline indicator 10 is on the chest of user 24, then ⁇ will not increase unless both ends of back incline indicator 10 are connected to user 24. Most injuries occur when people are bending forward, so it is important to detect improper forward bending.
- back incline indicator 10 is attached to user 24 while user 24 is reaching down by bending his back without also bending his knees. This is an improper bending technique.
- the angle ⁇ is increased to ⁇ 1 as user 24 moves from the position in FIG. 1 to the position in FIG. 3. If ⁇ + ⁇ > ⁇ crit, then mercury switch 44 conducts electricity and back incline indicator 10 signals to user 24 that his bending technique is improper.
- back incline indicator 10 is attached to user 24 while user 24 is reaching down by slightly bending his back and substantially bending his knees.
- the value of ⁇ is much less than ⁇ 1 . Because ⁇ + ⁇ ⁇ crit, mercury switch 44 does not conduct electricity, and back incline indicator 10 does not signal that an improper technique has been used.
- the value of ⁇ may be set to one value for all purposes, or to different values for particular purposes. Examples of purposes are to learn proper sitting and standing posture, techniques for lifting from the floor, and techniques for lifting from waist height. The value of ⁇ must not be chosen to be too small or back indicator 10 will inhibit correct back positions.
- the value of ⁇ for learning correct sitting and standing posture would be smaller than for learning to lift from the floor or waist height.
- the value of ⁇ for learning to lift from the floor might be greater than for learning to lift from waist height.
- the value of ⁇ should be set depending on the particular needs of the user.
- the perfect value of ⁇ may vary from person to person even for a particular purpose. If a single value of ⁇ is set for all purposes, then compromises will have to be made. A compromise value of ⁇ equal to 45° is chosen.
- Timer 68 is preferably a 555 timer that is commonly available through NTE Electronics, Inc. of Bloomfield, N.J.
- Timer 68 drives beeper 72 at a volume, duty cycle, pulse rate, and "delay-to-bounce" that are determined by the value of resistors, R1, R2, R3 and capacitor C.
- An increase in R 1 and/or a decrease in R2 results in an increase in the volume and duty cycle of the output of beeper 72.
- An increase in (R 1 -R 2 ) and/or in C results in a decrease in the pulse rate.
- An increase in R 3 results in an increase in "delay-to-bounce.”
- Battery 64 is preferably a 7 volt mercury oxide battery, such as Eveready model EP175.
- Beeper 72 is preferably a 6 volt DC Star HMB-06 audio transducer.
- beeper 12 could be a 5 volt DC Star TMG-05 audio transducer. With a 6 volt beeper, the pulse rate is 1/[0.7C (R 1 +2R 2 )], and the duty cycle is 0.7C(R 1 +R 2 ).
- C is preferably a 50 volt 0.47 uf capacitor.
- R1, R2 and R3 are preferably 220K ⁇ , 47K ⁇ and 0-100 ⁇ , respectively.
- the pin connections, resistor and capacitor arrangement, and the position of beeper 72 and ground 80 are shown in FIG. 5.
- FIG. 6 An alternative arrangement for the circuitry in back incline indicator is shown in FIG. 6 in which battery 64, beeper 72 and mercury switch 44 are in series.
Abstract
Description
λ=θ+ψ (1)
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/348,212 US4958145A (en) | 1989-05-05 | 1989-05-05 | Back incline indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/348,212 US4958145A (en) | 1989-05-05 | 1989-05-05 | Back incline indicator |
Publications (1)
Publication Number | Publication Date |
---|---|
US4958145A true US4958145A (en) | 1990-09-18 |
Family
ID=23367062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/348,212 Expired - Fee Related US4958145A (en) | 1989-05-05 | 1989-05-05 | Back incline indicator |
Country Status (1)
Country | Link |
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US (1) | US4958145A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5089808A (en) * | 1990-10-26 | 1992-02-18 | Amsau Company, Inc. | Device giving warning when undesired lifting position is assumed |
US5128655A (en) * | 1991-01-09 | 1992-07-07 | Shore Edward E | Flexion monitoring device |
US5168264A (en) * | 1992-03-06 | 1992-12-01 | Agustin Hermenegildo C | Posture position sensor |
WO1993004450A1 (en) * | 1991-08-21 | 1993-03-04 | Barnett Larry W | Torso attitude sensor |
US5394888A (en) * | 1992-12-17 | 1995-03-07 | Stone; Kevin R. | Arthrometer with gravity switches and adjustable limit signaling |
US5398019A (en) * | 1991-01-14 | 1995-03-14 | Larry W. Barnett | Portable sensor for detecting bends of the back of a person past a predetermined lumbosacral angle |
US5402107A (en) * | 1993-01-29 | 1995-03-28 | Allied Services Foundation, Inc. | Apparatus for sensing body attitude |
US5506565A (en) * | 1993-06-25 | 1996-04-09 | Andrew De Leon; Joseph | Device for signaling the felling of a tree and a system for forest conservation |
US5640971A (en) * | 1995-06-02 | 1997-06-24 | Martin, Jr.; Robert Leroy | Back movement monitor and warning device |
US5751214A (en) * | 1995-12-13 | 1998-05-12 | Alertcare, Inc. | Patient activity monitoring device with multiple sensors |
US6001023A (en) * | 1997-09-23 | 1999-12-14 | Richard D. Sanchez | Angle activated training device for golfers |
US6611783B2 (en) | 2000-01-07 | 2003-08-26 | Nocwatch, Inc. | Attitude indicator and activity monitoring device |
EP1369146A1 (en) * | 2002-06-07 | 2003-12-10 | Christophe Van Dongen | Posture detector |
US6682351B1 (en) * | 1998-10-12 | 2004-01-27 | Siemens Aktiengesellschaft | Method and system for monitoring the posture of a user at a training apparatus |
US20040033843A1 (en) * | 2002-08-19 | 2004-02-19 | Miller John Clifford | Motion evaluation system for golf swing and sports training |
WO2004066837A1 (en) * | 2003-01-30 | 2004-08-12 | Heinrich Henke | Control device for monitoring posture |
US20050235509A1 (en) * | 2004-04-22 | 2005-10-27 | Heath Derek E | Sound emitting device for maintaining correct posture or avoiding the effects of drowsiness |
US20060046865A1 (en) * | 2004-08-31 | 2006-03-02 | Tomomori Eigiro | Posture correcting tool |
WO2006059917A1 (en) * | 2004-12-01 | 2006-06-08 | Tadeusz Kropielnicki | Advanced posture corrector |
US20060195051A1 (en) * | 2005-02-25 | 2006-08-31 | Schnapp Elma O | Posture monitoring device and method of use thereof |
US20070169364A1 (en) * | 2001-02-23 | 2007-07-26 | Microstrain, Inc. | Posture and body movement measuring system |
US20090315721A1 (en) * | 2008-06-19 | 2009-12-24 | Mark Gottlieb | Back bend sensor |
US20100076358A1 (en) * | 2006-05-18 | 2010-03-25 | Carolyn Anne Richardson | Posture indicator |
US10661118B2 (en) * | 2017-11-15 | 2020-05-26 | DiJon X. Wilson | Perfect squat |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3362023A (en) * | 1965-06-01 | 1968-01-02 | William G. Mcmahon | Golfer's aid |
US3582935A (en) * | 1968-10-24 | 1971-06-01 | Richard L Verhaeghe | Posture control and correcting device |
US3644919A (en) * | 1970-12-18 | 1972-02-22 | William R Mathauser | Signalling device for indicating improper position of a skier |
GB1547364A (en) * | 1976-04-12 | 1979-06-13 | Barlow W | Distress warning devices |
US4284986A (en) * | 1980-06-23 | 1981-08-18 | Carlos Amortegui | Shirt-pocket medical alert device |
WO1983003747A1 (en) * | 1982-04-23 | 1983-11-10 | Kaj Laserow Ab | Warning device for monitoring the position of a part of a human body |
US4536755A (en) * | 1983-03-07 | 1985-08-20 | Rigi Systems, Inc. | Apparatus for detecting unauthorized egress by patient from position of confinement |
US4665388A (en) * | 1984-11-05 | 1987-05-12 | Bernard Ivie | Signalling device for weight lifters |
US4829285A (en) * | 1987-06-11 | 1989-05-09 | Marc I. Brand | In-home emergency assist device |
-
1989
- 1989-05-05 US US07/348,212 patent/US4958145A/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3362023A (en) * | 1965-06-01 | 1968-01-02 | William G. Mcmahon | Golfer's aid |
US3582935A (en) * | 1968-10-24 | 1971-06-01 | Richard L Verhaeghe | Posture control and correcting device |
US3644919A (en) * | 1970-12-18 | 1972-02-22 | William R Mathauser | Signalling device for indicating improper position of a skier |
GB1547364A (en) * | 1976-04-12 | 1979-06-13 | Barlow W | Distress warning devices |
US4284986A (en) * | 1980-06-23 | 1981-08-18 | Carlos Amortegui | Shirt-pocket medical alert device |
WO1983003747A1 (en) * | 1982-04-23 | 1983-11-10 | Kaj Laserow Ab | Warning device for monitoring the position of a part of a human body |
US4536755A (en) * | 1983-03-07 | 1985-08-20 | Rigi Systems, Inc. | Apparatus for detecting unauthorized egress by patient from position of confinement |
US4665388A (en) * | 1984-11-05 | 1987-05-12 | Bernard Ivie | Signalling device for weight lifters |
US4829285A (en) * | 1987-06-11 | 1989-05-09 | Marc I. Brand | In-home emergency assist device |
Non-Patent Citations (1)
Title |
---|
Creative Specialists Brochure for Back Box II Lift Angle Sensor. * |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5089808A (en) * | 1990-10-26 | 1992-02-18 | Amsau Company, Inc. | Device giving warning when undesired lifting position is assumed |
US5128655A (en) * | 1991-01-09 | 1992-07-07 | Shore Edward E | Flexion monitoring device |
US5398019A (en) * | 1991-01-14 | 1995-03-14 | Larry W. Barnett | Portable sensor for detecting bends of the back of a person past a predetermined lumbosacral angle |
WO1993004450A1 (en) * | 1991-08-21 | 1993-03-04 | Barnett Larry W | Torso attitude sensor |
US5168264A (en) * | 1992-03-06 | 1992-12-01 | Agustin Hermenegildo C | Posture position sensor |
US5586559A (en) * | 1992-12-17 | 1996-12-24 | Stone; Kevin R. | Arthrometer with gravity switches and adjustable limit signaling |
US5394888A (en) * | 1992-12-17 | 1995-03-07 | Stone; Kevin R. | Arthrometer with gravity switches and adjustable limit signaling |
US5402107A (en) * | 1993-01-29 | 1995-03-28 | Allied Services Foundation, Inc. | Apparatus for sensing body attitude |
US5506565A (en) * | 1993-06-25 | 1996-04-09 | Andrew De Leon; Joseph | Device for signaling the felling of a tree and a system for forest conservation |
US5640971A (en) * | 1995-06-02 | 1997-06-24 | Martin, Jr.; Robert Leroy | Back movement monitor and warning device |
US5751214A (en) * | 1995-12-13 | 1998-05-12 | Alertcare, Inc. | Patient activity monitoring device with multiple sensors |
US6001023A (en) * | 1997-09-23 | 1999-12-14 | Richard D. Sanchez | Angle activated training device for golfers |
US6682351B1 (en) * | 1998-10-12 | 2004-01-27 | Siemens Aktiengesellschaft | Method and system for monitoring the posture of a user at a training apparatus |
US6611783B2 (en) | 2000-01-07 | 2003-08-26 | Nocwatch, Inc. | Attitude indicator and activity monitoring device |
US20070169364A1 (en) * | 2001-02-23 | 2007-07-26 | Microstrain, Inc. | Posture and body movement measuring system |
US7698830B2 (en) | 2001-02-23 | 2010-04-20 | Microstrain, Inc. | Posture and body movement measuring system |
WO2003103780A1 (en) * | 2002-06-07 | 2003-12-18 | Christophe Van Dongen | Posture detector |
EP1369146A1 (en) * | 2002-06-07 | 2003-12-10 | Christophe Van Dongen | Posture detector |
US20050237209A1 (en) * | 2002-06-07 | 2005-10-27 | Christophe Van Dongen | Posture detector |
US20040033843A1 (en) * | 2002-08-19 | 2004-02-19 | Miller John Clifford | Motion evaluation system for golf swing and sports training |
WO2004066837A1 (en) * | 2003-01-30 | 2004-08-12 | Heinrich Henke | Control device for monitoring posture |
US20050235509A1 (en) * | 2004-04-22 | 2005-10-27 | Heath Derek E | Sound emitting device for maintaining correct posture or avoiding the effects of drowsiness |
US20060046865A1 (en) * | 2004-08-31 | 2006-03-02 | Tomomori Eigiro | Posture correcting tool |
US7086958B2 (en) * | 2004-08-31 | 2006-08-08 | Tomomori Eigiro | Posture correcting tool |
WO2006059917A1 (en) * | 2004-12-01 | 2006-06-08 | Tadeusz Kropielnicki | Advanced posture corrector |
US20060195051A1 (en) * | 2005-02-25 | 2006-08-31 | Schnapp Elma O | Posture monitoring device and method of use thereof |
US20100076358A1 (en) * | 2006-05-18 | 2010-03-25 | Carolyn Anne Richardson | Posture indicator |
US20090315721A1 (en) * | 2008-06-19 | 2009-12-24 | Mark Gottlieb | Back bend sensor |
US8018346B2 (en) | 2008-06-19 | 2011-09-13 | Mark Gottlieb | Back bend sensor |
US10661118B2 (en) * | 2017-11-15 | 2020-05-26 | DiJon X. Wilson | Perfect squat |
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Legal Events
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AS | Assignment |
Owner name: SAFETY OPERATING SYSTEMS, INC., A CORP. OF OR, ORE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MORRIS, JAMES A.;REEL/FRAME:005078/0518 Effective date: 19890505 |
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Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
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STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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Effective date: 20020918 |